EMI-Free ESP32 Sensor Interface Board
Budget: ₹1,500 – ₹12,500 INR
My press machine sits in a very noisy electrical environment—motors, relays, and plenty of EMI that keeps corrupting the signal coming from a PNP sensor. The sensor gives me an analog output, but by the time it reaches the ESP32 GPIO the waveform is unusable.
I need a complete hardware solution that delivers a rock-solid, noise-free signal to the microcontroller. Your work should cover the full pathway from the sensor connector to the ESP32 pin: component choices, protection stages, filtering, and grounding strategy. If shielded cabling, ferrite beads, or optical isolation prove helpful, feel free to weave them in; the key is a verifiably clean edge at the micro.
I have attached video where pnp is installed
Please provide:
• Schematic with reference designators and values
• PCB layout ready for fabrication (Gerber + drill files)
• Bill of materials with part numbers that are actually purchasable today
• Brief test procedure so I can confirm the line is truly clean once assembled
Keep the design compact, 24 V-tolerant (sensor supply), and ESP32-friendly at 3.3 V logic. I’ll build the first prototype as soon as your files land, so clarity and completeness in the documentation are essential.
I need a complete hardware solution that delivers a rock-solid, noise-free signal to the microcontroller. Your work should cover the full pathway from the sensor connector to the ESP32 pin: component choices, protection stages, filtering, and grounding strategy. If shielded cabling, ferrite beads, or optical isolation prove helpful, feel free to weave them in; the key is a verifiably clean edge at the micro.
I have attached video where pnp is installed
Please provide:
• Schematic with reference designators and values
• PCB layout ready for fabrication (Gerber + drill files)
• Bill of materials with part numbers that are actually purchasable today
• Brief test procedure so I can confirm the line is truly clean once assembled
Keep the design compact, 24 V-tolerant (sensor supply), and ESP32-friendly at 3.3 V logic. I’ll build the first prototype as soon as your files land, so clarity and completeness in the documentation are essential.